"The update could not be installed. Please make sure there are no other copies of Firefox running on your computer, and then restart Firefox to try again"
I'm using Firefox 4 Beta and I tryed install update but I dont got success. Now every time that I go start the browser is displayed the mensage: "The update could not be installed. Please make sure there are no other copies of Firefox running on your computer, and then restart Firefox to try again"
My release is installed not in default drive C:\. I installed in the other Partition on my PC.
I don't have other release installed.
Additional System Details
Every time Firefox opened
This started when...
after I installed and done update release.
- Shockwave Flash 10.1 r102
- DivX Web Player version 184.108.40.206
- Office Authorization plug-in for NPAPI browsers
- The plug-in allows you to open and edit files using Microsoft Office applications
- RealPlayer(tm) LiveConnect-Enabled Plug-In
- RealJukebox Netscape Plugin
- RealPlayer(tm) HTML5VideoShim Plug-In
- Adobe PDF Plug-In For Firefox and Netscape "9.4.2"
- The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
- User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b12) Gecko/20100101 Firefox/4.0b12
Try a clean re-install.
- Download the setup file from http://www.mozilla.com/en-US/firefox/RC (this is for the Firefox 4 release candidate)
- Uninstall Firefox, do not select the option to "Remove my Firefox personal data"
- Delete the Firefox installation directory - http://kb.mozillazine.org/Installation_directory
- Re-install Firefox
This process does not remove the Firefox user data such as bookmarks and passwords which are stored elsewhere in the profile folder.
You may also need to manually reset the Software Update feature by deleting the software update files as shown in the "Software Update not working properly" section here - http://kb.mozillazine.org/Software_Update
I did download and re-installed The Firefox. Lets to see if this solve the problem.
For now thanks for your helpful.
In Windows Vista or 7: a. close all Firefox by using task manager b. in Windows search dialogue box, type Firefox c. when Firefox appears in search results, right click, and select "run as administrator" d. you should see "update being installed" message (or something similar.
I followed what davidlum suggested above and this did the trick. The update installed successfully since there was no UAC dialog that needed to occur after running as Administrator.
I have since disabled the "Use a background service to install updates" (Options->Advanced>Update) to try and avoid this issue in the future.